For the books IN CALIBRE (main)
From a command prompt: calibredb list > mylist.txt
you can use any name you want in place of "mylist" The .txt make it so it opens with Notepad or other simple text editor by default.
Calibre does not currently seem to allow a Select and copy of the lists shown.
For your reader,
you could get a directory listing, it won't be pretty
Find out the drive letter assigned to the storage of interest on you device ("My computer" should show this)
Open a command prompt window (by default this will be at: C:\documents and settings\<your user name> )
type
Code:
cd desktop [enter]
dir <drive letter>: /S > mylist.txt [enter]
This will leave the file mylist.txt on the desktop
The /S will step through all your folders on the specified drive letter (from the starting directory)